I don't have a real problem with it (fish eating fish) as long as I'm not choosing to be reckless with my choices and they're not expensive
. It's less cruel than keeping fish in poor water and dragging out the suffering. As for the fish choices, I'd love to hear suggestions. Rummynose, Corys and Otos are not debatable to me, and the Angels are not debatable to my wife, but I would like to hear suggestions on numbers. We want as large of shoals as possible. My total water volume is something around 150 gallons with the sump. The Giant Danios seem to stay up high in every tank I've seen them in, and they get farily large, but I'm not thrilled by the looks of them. I do like bloodfin, and penguin tetras.